B & T World Seeds
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Echinops ritro rs information page
germination advice, shopping cart,
all the sublists (specialist catalogues) Echinops ritro rs is included in,
some description and snippits of information.
The average, annual, minimum temperature zone where Echinops ritro rs is cold hardy
USDA Zone:3 -40° to -30°F (-40° to -34.5°C)
Approximately 70 seeds per gram
seed-counts are only a guide, not to be used for accurate calculations.
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rs at the end of the name Echinops ritro rs indicates that the seed is "rubbed seed";
the fruit are machine rubbed to separate the seeds from chaff or pods. The seed is cleaner then bs (bulk seed) but is not cs (clean seed)